Contact me
Telegram：https://t.me/GearBlog
Instagram：https://www.instagram.com/gearblog_cn/
China Wechat：755913834
Description
Experience "The Brilliant" — Masterpiece of Japanese Precision
Named "秀" (SHU) — meaning "a brilliant" or "excellence" in Japanese — this premium gentleman's folding knife is the pinnacle of functional art. Engineered by Rockstead in Sakai, Japan, the SHU CB-ZDP combines legendary cutting physics with traditional Japanese aesthetics.
The handle features an intricately engraved "UME" (Japanese Apricot / Plum blossom) motif into its premium titanium scale, making it not just a highly capable Everyday Carry (EDC) tool, but a true collector's heirloom.
Key Features & Innovation
-
Mirror-Polished ZDP189 Steel: Crafted from premium ZDP189 powder stainless steel, hardened to an incredible HRc 67. This allows the blade to retain a razor-sharp edge significantly longer than standard production knives.
-
DLC-Coated Titanium Handle: The solid titanium scale is treated with a Diamond-Like Carbon (DLC) coating, providing extreme scratch resistance, durability, and a sleek stealth-black finish.
-
Intricate "UME" Engraving: A beautiful, traditional Japanese apricot motif is precisely carved across the scale, giving it an unmistakable artistic soul.
-
Convertible Deep-Carry Clip: Designed for the modern gentleman, the knife includes a pocket clip that can be easily installed or removed via the dedicated titanium cover plate.
-
Reliable Button Lock: Smooth, safe, and fluid deployment paired with a rock-solid button lock mechanism for absolute security during use.
ZDP189 Blade Introduction
ZDP-189 is a high-carbon, high-chromium powder metallurgy steel renowned for its extreme hardness, often exceeding 64 HRC, which delivers peerless edge retention and aggressive cutting performance. This performance comes at a cost; its massive carbide volume makes the steel notoriously difficult to sharpen and increases brittleness, posing a risk of chipping under heavy lateral impact. Furthermore, while technically stainless, its high carbon content necessitates diligent maintenance to prevent oxidation, making it a specialized choice for precision cutting tasks rather than rough, heavy-duty utility.
SHU-CB-ZDP (UME)
| Spec | Details |
| Total Length | 194 mm (≈7.63") |
| Blade Length | 82 mm (≈3.22") |
| Blade Thickness | 3.2 mm |
| Blade Material | ZDP189 Premium Powder Steel |
| Blade Hardness | ~ HRc 67 |
| Scale Material | Titanium with DLC Coating |
| Lock Type | Button Lock |
| Weight | 100g (3.52 oz) |
| Origin | Made in Sakai, Osaka, Japan |
Frequently Asked Questions (FAQ)
Q1: What makes Rockstead ZDP189 steel better than standard pocket knife steels?
A: Rockstead heat-treats their Hitachi ZDP189 powder stainless steel to an extraordinary HRc 67, significantly harder than standard premium steels (typically HRc 59-62). Combined with their signature samurai-sword-inspired Honzukuri convex grind, it offers world-class edge retention that can last for years under normal use without chipping.
Q2: Does the Rockstead SHU folding knife have a safety lock mechanism?
A: Yes. The Rockstead SHU features a highly secure, fluid button lock (plunge lock) system paired with a manual slide safety switch on the spine of the handle. This dual-stage safety allows you to lock the blade firmly in place when open to prevent accidental closing, or lock it down when closed for safe pocket carry.
Q3: How do I sharpen my Rockstead SHU (UME) knife, and does it have a warranty?
A: Rockstead knives come with a Limited Lifetime Warranty and a free lifetime sharpening program for the original owner. Because of the ultra-hard HRc 67 steel and flawless mirror finish, it is highly recommended to send the knife back to Rockstead’s master craftsmen in Japan for professional re-grinding and polishing (the owner only pays for return shipping).
Why Choose the Rockstead SHU-CB-ZDP (UME)?
The Rockstead SHU (UME) is the ultimate intersection of elite Japanese craftsmanship and advanced metallurgy. Featuring an ultra-hard ZDP189 steel blade (HRc≈67) for unparalleled edge retention and a stunningly engraved DLC-coated titanium handle, it delivers heirloom-quality aesthetics alongside world-class, mirror-polished cutting performance.
Payment & Security
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
Delivery and Shipping
In-stock orders will be shipped in 48 hours except weekend and holidays.
Pre-orders pls subject to the indicated Pre-order shipping dates.
From China warehouse: Estimated delivery in 15–21 business days